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66363 (1999 JX91)
Classification: Main-belt Asteroid          SPK-ID: 2066363
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05224150909609599 4.316e-08  
a 2.237833077609652 8.0698e-09 au
q 2.120925300530163 9.4687e-08 au
i 7.702546525292713 2.9439e-06 deg
node 104.1623580869996 3.6392e-05 deg
peri 64.99449761053938 5.1883e-05 deg
M 158.2222408973938 3.8022e-05 deg
tp 2458463.090931588423
(2018-Dec-10.59093159)
0.00012792 TDB
period 1222.756443916315
3.35
6.614e-06
1.811e-08
d
yr
n .2944167677799932 1.5925e-09 deg/d
Q 2.354740854689141 8.4914e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      7861 days (21.52 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54282  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:49:02  

Additional Information
 Earth MOID = 1.14141 au 
 Jupiter MOID = 2.63352 au 
 T_jup = 3.623 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO333371  

66363 (1999 JX91)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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